Ed,
I was thinking of trying that. I couldn’t
figure out which bins are not correct. For example, in my case, the bins go
from 43-44 to 47-48 when it jumps. So I didn’t know if I should adjust the intervening
bins (the ones it skips) or one or the other side of the jump.
It seems that you adjusted the receiving bins??
Bill
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Ed Anderson
Sent: Saturday, November 06, 2010
12:52 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Adjust BELOW
Observe ABOVE
Bill, if you don't like the idea of using Mode 6 because it
may cause an adjustment of all bins above staging - here is an alternative
suggestion based on the way I coped with the situation.
As I mentioned my engine would also bog due to leaning
during the staging process - being too lazy to read the manual and spot Mode 6
as a possible solution, I used the "brute force" method. I
observed that when my engine staged my bin pointer would jump from the 30 some
region to around 60. It was immediately after I observed the manifold
pointer to make that jump - that the air/fuel ratio went lean and the
engine bogged.
So from the lean indication I was getting , I presume my
engine was (for whatever reason) not getting adequate fuel in the bins around
60. So I started increasing the MAP values in bins 60-65 higher
(enrichen) in incremental steps. I found that each adjustment richer in
those bins caused the bog to become less severe giving me a comfortable feeling
I was headed in the correct direction. Eventually the bog disappeared and
my bin values above 65 were not affected because I did nothing to change those.
You might want to try that method - but I would give Mode 6
another try by adjusting below staging and checking results above staging.